"Everything starts as somebody's daydream. And, when you're daydreaming, it is science fiction. It's when you start work out how you put it together, true science fiction becomes real science."
- Larry Niven

A means of recording the entirety of a person's experience and personality.

What memory recording did was to make it possible for a second personality, exactly like her own, to be implanted in a second body, also exactly like her own. But Lilo could never participate in the life that clone would lead, even though it had her memories up to the time of the recording...

There were tiny metal channels implanted in Lilo's brain, put there when she was three years old. They enabled her to interface with a computer, and also served as conduits for the recording medium; single molecule chains of ferro-photo-nucleic acid.